源自腰果酚的可紫外光固化多官能团聚氨酯丙烯酸酯树脂的合成与性能

Synthesis and Properties of UV-Curable Polyfunctional Polyurethane Acrylate Resins from Cardanol.

作者信息

Hu Yun, Shang Qianqian, Bo Caiying, Jia Puyou, Feng Guodong, Zhang Fei, Liu Chengguo, Zhou Yonghong

机构信息

Institute of Chemical Industry of Forest Products; Key Laboratory of Biomass Energy and Material, Jiangsu Province; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province; Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; National Engineering Laboratory for Biomass Chemical Utilization, Chinese Academy of Forestry, Nanjing 210042, P. R. China.

Jiangsu Police Institute, Nanjing 210031, P. R. China.

出版信息

ACS Omega. 2019 Jul 23;4(7):12505-12511. doi: 10.1021/acsomega.9b01174. eCollection 2019 Jul 31.

DOI:10.1021/acsomega.9b01174

PMID:31460370

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6681986/

Abstract

A novel UV-curable polyurethane acrylate (PUA) oligomer was synthesized by modifying cardanol with a polyfunctional acrylate precursor obtained through reacting pentaerythritol triacrylate with isophoronediisocyanate. Chemical structures of the obtained cardanol-based PUA (C-PUA) oligomer were confirmed by Fourier transform infrared and H NMR. Subsequently, viscosity and gel content of the C-PUA resins containing different quantities of hydroxymethyl methacrylate (HEMA) were characterized. The C-PUA oligomer possessed a viscosity of 8360 mPa s, which reduced to 115 mPa s when 40% of the HEMA diluent was added. Furthermore, thermal, mechanical, coating, and swelling properties of the resulting UV-cured C-PUA/HEMA materials were investigated. The ultimate biomaterials showed excellent performance, including a glass transition temperature ( ) of 74-123 °C, maximum thermal degradation temperature of 437-441 °C, tensile strength of 12.4-32.0 MPa, tensile modulus of 107.2-782.7 MPa, and coating adhesion of 1-2. In conclusion, the developed C-PUA resins show great potential to be applied in UV-curable materials like coatings.

摘要

通过用季戊四醇三丙烯酸酯与异佛尔酮二异氰酸酯反应得到的多官能丙烯酸酯前体对腰果酚进行改性，合成了一种新型的紫外光固化聚氨酯丙烯酸酯（PUA）低聚物。通过傅里叶变换红外光谱和氢核磁共振对所得的腰果酚基PUA（C-PUA）低聚物的化学结构进行了确认。随后，对含有不同量甲基丙烯酸羟乙酯（HEMA）的C-PUA树脂的粘度和凝胶含量进行了表征。C-PUA低聚物的粘度为8360 mPa·s，当加入40%的HEMA稀释剂时，粘度降至115 mPa·s。此外，还研究了所得紫外光固化C-PUA/HEMA材料的热性能、机械性能、涂层性能和溶胀性能。最终的生物材料表现出优异的性能，包括玻璃化转变温度（）为74-123℃、最大热降解温度为437-441℃、拉伸强度为12.4-32.0 MPa、拉伸模量为107.2-782.7 MPa以及涂层附着力为1-2。总之，所开发的C-PUA树脂在涂料等紫外光固化材料中具有巨大的应用潜力。